Knockdown extension-table.



E. TYDEN.

KNOGKDOWN EXTENSION TABLE.

APPLICATION FILED TERZO, 1911.

Patented June 25, 1912.

2 SHEETS-SHEET l.

l l l l l l Ilxllllll|||4 lIII. Iwllll o.

COLUMBIA PLANcaRAPH Co., WASHINGTON. D. C.

E.TYDEN. KNOGKDOWN EXTENSION TABLE.

APPLICATION FILED FEB.20, 1911.

1,030,433, Y Patented June 25, 1912.

Z SHEETS-SHEET 2.

lill- 11:

COLUMBIA PLANOURAPH C c.

entran srarns `PATENT onirica.

EMIL TYDEN, 0F HASTINGS, MICHIGAN.

KNOCKDOWN EXTENSION-TABLE.

To all whom t may concern Be it known that I, EMIL TYDEN, a citizen of the United States, residing at Hastings, in the count-y of Barry and State of Michigan, have invented new and useful Improvements in Knockdown Extension-Tables, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide an improved construction of knockdown extension tables. It consists in the elements and features of construction shown and described as indicated in the claims.

In the drawings Figure l is a top plan view of a table embodying this invention showing the top members partly extended. Fig. 2 is a section at the line 2 2 on Fig. l. Fig. 3 is a section at the line 3 3 on Fig. l. Fig. 4 is a section at the line 4 1 on Fig. l. Fig. 5 is a perspective view of a latch and stop device pertaining to the invention. Fig. 6 1s a plan View of a table having a modified form of the invention. Fig. 7 is a section at the line 7 7 on Fig. 6. Fig. 8 is a det-ail section at the line 8 8 on Fig. 7. Fig. 9 is a perspective View of an end portion of one of the slides and one member of an engaging couple mounted thereon. Fig. 10 is a perspective view showing the other member of such couple mounted on a piece of the table top. Fig. 1l is a perspective View of a latching device pertaining to said modified form of the invention.

The form of the invention shown in Figs. l, 2, 3 and twill rst be described. The general construction of the table is that which is familiar, comprising right and left hand top members, l and 2, mounted on a support-ing member which comprises two pedestal halves, 3, connected together by a hook, 4t, and two sets of extension slides mounted on the supporting member, comprising outer eXtreme slides, 5, 5, which are designed for rigid attachment thereto of the right-hand top member, l; interior eX- treme slides, 6, 6, which are designed for rigid attachment to the left-hand top member, 2, and intermediate slides, 5, 5a, attached to the right-hand pedestal half, and 6a, 6*?, attached to the lefthand pedestal half, said attachment being in the usual manner, by securing the slides to the pedestal caps, 3a, 3b, respectively. The top members, l and Speccation of Letters Patent.

Application filed February 20, 1911.

Patented June 25, 1912.

Serial N o. 609,583.

2, are disengageably engaged rigidly wit-h the slides mentioned, upon which they are respectively mounted. Means for such disengageable engagement consists of identical devices employed in connection with each of the four slides, 5, 5 and 6, 6, and description of the devices upon one slide would suiice for all. The detail Figs. 2 and 3, show these devices pertinent to the eXtreme slide, 7, and the right-hand top member, l, and these will now be described. They comprise a hook plate, 8, having a hook, 8a, said hook plate being mounted at the inner or meeting edge of the top member, l, upon the under side thereof, said plate having preferably a -marginal flange, 8b, expanded inward so as to afford a dovetail-like engagement with the edge of the table top, as seen in Fig. 2. The hook, 8a, projects inward from the lower inner corner of the hook plate and is adapted for engagementI with a slot, 7 a, in a plate, 7, which is mounted upon the upper edge of t-he slide, 5. The two hooks, 8a, one for each of the slides, 5, may be engaged simultaneously with the two plates, 7, on said two slides, 5, the table-top member, l, being held up at the outer edge for entering the hook in t-he slot of the plate, and lowered to rest upon the slide as the hooks become engaged. For locking the table top members securely on the slide with the hooks thus engaged, there is provided mounted upon the under side of the top member, at the outer end of each slide, 5, a latching device which consists of a hinge, 1l, having one leaf secured to the under side of the table top and the other leaf depending vertically from the pint-le and having the flange, lla, extending downward and with its width in the direction of the length of the table, that is, transverse to the parting plane, said flange being adapted to enter a saw kerf or slot, 5X, which is cut in the end of the slide, 5. The depending flanges, 11a, of the two devices, ll, on the said righthand table member are connected by a cross bar, 9, attached to the lower 'ends of the said flanges, lla, so that the two latching devices thus formed may be operated together by the operator taking hold of said bar, 9, and swinging the latching device outward to disengage the flange, 11, from the saw kerf and withdraw the cross bar, 9, from under the lower edge of the slide. It will be observed that when the table top member having the hooks, 8a, engaged, as described, with the plate, 7, is lowered on to the slides, the latching device described will tend by gravity to swing to position at which the bar, 9, engages under the ends of the slides, 5, thereby locking the top down securely on the slides; and it will also be observed thatthe engagement of the flanges, lla, wit-h the saw kerfs at the end ot the respective slides operates to hold the slides rigid with respect to the table top independently of their engagement with the adjacent slides, as is desirable. V

The form shown in Figs.6 to 10 inclusive differs from that shown in the other iigures mainly in having the initial engaging` couple at the outer end of the slide and corresponding position near the outer end of the table top instead of at the inner edge of the table-top member and corresponding position of the slide. Other differences will appear as the structure is described. The several parts of the table, comprising right and left top halves, right and left pedestal halves, the hook which connects them and the two sets of slides, are the same as in the first de scribed form and similarly indicated by reference numerals. Each table halt is provided with means for disengageable rigid' attachment to one slide of each set, said means consisting in each instance in an engaging couple at the outer end of the slide and a latching device at the inner edge of the top member. The engaging couples and latches are all ident-ical in construction, and description of one couple and one latch device will sufce for all. In Fig. 7 there is shown one of the engaging couples and one of'the latches for attaching the right-hand top member, 1, and this will now be Vdescribed. The engaging couple consists of a fitting, 7, which is mounted upon the upper outer corner of the outer slide, 5, said fitting having a flange, 7a, projecting outwardly beyond the outer surface oit' the slide and provided with a vertically elongated aperture, 7b, whose inner edge is flush with the outer surface of the slide. Upon the table top there is mounted an angle bracket, S, having its vertical member formed as a hook nose, 8a, to enter the slot, 7b, when the table top is lodged on the slide in a manner which will be obvious. The latching device for securing the inner edge of the table-top member, l, to the slide consists of a hook, 9, pivoted on a stud, 10, which projects from the exposed side of the slide, 5, and which has an engaging nose in the form oit' a projecting pin, 9b, adapted to enter a screw eye, 1l, which is screwed into the under side of the table top near the inner edge. The hook, 9, has a handle arm, 9C, which, when the hook is at disengaged position, stands up across the inner edge of the top member, 1,. as shown in dotted line in Fig. 7, and prevents the closing together of the top, and thereby effectually prevents inadvertence in respect to engaging the hook and makes it certain that the table will not be put into service without such engagement having been effected by swinging the hook handle arm down to full-line position shown in Fig. 7 where its upper end is just below the table top and is stopped by the latter and held in position insuring the engagement. of the hook. For convenience in operating theA device,-that is, to relieve the operator of the necessity of holding the hooks disengaged when desiring to remove the top member,-the arm, 9a, of the hook which has the hook nose, 9b, is made heavy enough to overbalance the handle arm, 9, so that as soon as the hook has been released, it will fall to position shown in dotted line and remain disengaged while the top is removed. Vhen the hook is thrust up into engaged position, the rictional grasp of the pin on the eye will hold it while the top is closed up to position which closely locks it, as above described.

It will be observed that the engagement of the vertically elongated hook nose, 8a, with the similarly elongated slot, 7b, 'causes the slide to be held against lateral displacement in either direction independently of its engagement with or bearing against theneXt adjacent slide, and also tends to hold the slides steadily as against any tendency to tip laterally.

I claim l. A knock-down extension table comprising, in combination with the top halves and the 'supporting member, two sets of slides mounted on the supporting member, one slide of each set being disengageably engaged rigidly with one top half, and another slide of each set being disengageably engaged rigidly with the other top half, the means for such engagement consisting of an engaging couple at the outer end of the slide whose two members are rigid respectively with the slide and table top; an engaging couple at the inner edge of the table top consisting of a hook pivoted upon the slide and an eye mounted on the under side of the top half, the pivoted hook having an arm which at disengaged position of the hook stands up across the inner edge of the top half.

2. A knock-down extension table comprising, in combination with the top halves and the supporting member, two sets of slides mounted on the supporting member, one slide of each set being disengageably engaged rigidly with one top half, and another slide of each set being disengageably engaged rigidly with the other top half, the means for such engagement consist-ing of an engaging couple at the outer end of the top consisting of a hook pivoted upon the slide and an eye mounted on the under side of the top half, the pivoted hook having an arm which at disengaged position of the hook stands up across the inner edge of the top half, the other arm of the hook being Weighted to overbalance said first-mentioned arm and cause it normally to assume said upstanding position.

3. A knock-down extension table comprising, in combination with the top halves and the supporting member, two sets of slides mounted on the supporting member, one slide of each set being disenga-geably engaged rigidly with one top half, and another slide of each set being disengageably engaged rigidly with the other top half; a iitting mounted rigidly upon the outer end of the slide comprising a vertically elongated eye and a bracket hook mounted rigidly upon the under side of the top half having a correspondingly elongated hook nose for entering the eye, and a pivoted hook mounted upon the side of the slide under t-he inner edge of the top half, and an eye rigid with the top half for engaging said hook, said pivoted hook having a handle arm which at disengaged position of the hook projects up ward across the inner edge of the top half.

4. A knockdown extension table comprising, in combination with the top halves and the supporting member, two sets of slides mounted on the supporting member, one slide of each set being disengageably engaged rigidly with one top half, and another slide of each set being disengageably engaged rigidly with the other top half; a fitting mounted rigidly upon the outer end oit' the slide comprising a vertically elon gated eye and a bracket hook mounted rigidly upon the under side of the top halt having a correspondingly elongated hook nose for entering the eye, and a pivoted hook mounted upon the side of the slide under the inner edge of the top half, and an eye rigid with the top half for engaging said hook, said pivoted hook having a handle arm which at disengaged position of the hoolr projects upward across the inner edge oi' the top half and having the opposite end weighted \to overbalance said handle end and hold it normally in said upst-anding position.

In testimony whereof, I have hereunto set my hand at Chicago, Illinois, this 17th day of February, 1911.

EMIL TYDEN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents. Washington, ID. C. 

